3D4M Engineering Performance

Luvocom® 3F PAHT KK 50056 BK FR Filament.

A flame-retardant high-temperature polyamide reinforced with halogen-free ceramic spheres. It reaches V-0 in the UL 94 test at 1/16 inch, and the material is certified against the European rail fire standard. read further

  • High dimensional stability
  • UL94 Vertical Burning Test
  • EN 45545 certified
Luvocom® 3F PAHT KK 50056 BK FR Filament, BK, 500 g, 1.75 mm
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Color
Diameter
Weight
€59.95
€119.90/kg · excl. VAT
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For custom specs, technical validation, or bulk pricing. Speak with an engineer before you order.

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Freshly produced on demand and typically shipped within 3 working days.

About this material

Luvocom 3F PAHT KK 50056 FR: flame retardant, and certified for rail.

Luvocom 3F PAHT KK 50056 BK FR is a flame-retardant high-temperature polyamide, reinforced with ceramic spheres rather than fibres, and halogen free. It is PA6 based but takes up less water and stands more heat than a standard PA6.

The certification is the reason it exists. It reaches V-0 in the UL 94 test at 1/16 inch (1.6 mm), and the material is certified against EN 45545, the European standard for the fire behaviour of materials in trains, for requirement sets R22 and R23. Rail interiors are its main end-use domain, and that is no accident.

It is also notably stable: mould shrinkage sits between 0 and 0.1%, so parts come out to size. It prints easily and does not warp.

The reinforcement here is ceramic, not carbon fibre, and this grade carries no food contact approval. Those belong to other materials in our range.

Luvocom® 3F PAHT KK 50056 BK FR Filament

A plug printed in Luvocom 3F PAHT KK 50056 BK FR.

Physical properties
PropertyConditionValueTest method
Specific gravity 1,49 g/cm³ ISO 1183-3
Water absorption 23°C / 24h <0,3 % ISO 62
Linear mould shrinkage 0,0-0,1 % DIN 16742
Flammability behaviour 1/16 in (V-0) UL 94
Mechanical properties
PropertyConditionValueTest method
Tensile strength dry, @50 mm/min 55 MPa ISO 527
Elongation at maximum force dry, @50 mm/min 1,2 % ISO 527
Modulus of elasticity dry, @1 mm/min 6 GPa ISO 527
Thermal properties
PropertyConditionValueTest method
Heat distortion temperature HDT A 90 °C ISO 75
Continuous service temperature 20.000 h 120 °C IEC 60216
Service temperature during lifetime max. 200h 160 °C
Electrical properties
PropertyConditionValueTest method
Insulation resistance strip electrode R25 >10⁹ Ω DIN IEC 60167
Surface resistance ROB >10⁹ Ω DIN IEC 60093
Printer settings & data sheets

A certified material that still prints on an open machine.

This grade runs on conventional FFF and FDM systems with no heated chamber, at a hot nozzle and a bed above 50 °C. Use Magigoo PA on glass or a PEI sheet for the first layer.

Dry it first.

Pre-dry the filament at 100 °C for four hours, or at 70 °C for five hours or more. Polyamides pull moisture out of the air, and it shows in both the surface and the layer strength. Seal the spool between jobs.

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Recommended print settings
ParameterValue
Nozzle temperature265 to 290 °C
Heated bed temperatureabove 50 °C
Print speed40 to 60 mm/s
AdhesionMagigoo PA on glass or a PEI sheet
Drying100 °C, 4 hours or 70 °C, more than 5 hours
Support materialsHIPS and PVOH
NozzleAbrasion-resistant nozzle, diameter larger than 0.5 mm
Layer thickness0.2 mm or thicker
Empty spool weight
Filament weightSpoolEmpty weight
500 to 750 g RS 200 GH2L PC 243 g
2300 g RS300/15GHL PC 618 g
Measurements & tolerance

Precision-engineered consistency.

Consistent prints start with a uniform filament shape. We continuously monitor diameter and roundness during production. When filament varies in size or loses its round profile, material flow becomes erratic. This causes under-extrusion and weak layer bonds.

Our manufacturing process keeps the cross-section stable across the full spool. Your printer receives a steady volume of material without pressure drops in the nozzle. You get predictable extrusion on every job, so with Luvocom® 3F PAHT KK 50056 BK FR you can focus on your design, not your material.

1.75 mm filament
±0.05mm
Diameter tolerance, edge to edge across the spool.
2.85 mm filament
±0.10mm
Diameter tolerance, edge to edge across the spool.
Both diameters
≥95%
Cross-section roundness across the spool.
The production process

Sealed at the source. Never touched by water.*

Unlike manufacturers who cool filament in a water bath, our filament never touches water during production. Moisture inside the material creates bubbles and weakens layer bonding during printing. Water-free production keeps extrusion consistent and bubble-free.

Sealed and ready to print.
We produce on demand. Every spool is vacuum-sealed immediately after extrusion, so it reaches you dry. This process keeps every spool of Luvocom® 3F PAHT KK 50056 BK FR ready to print out of the box.

* At times of high demand, and for some variants, production may run on a conventional water-cooled line. Contact us before ordering if you require material produced with our water-free process.

Vacuum-sealed filament spool, straight off the extrusion line

Vacuum-sealed on the production line, before it ever leaves the machine.

Traceability & quality assurance

Precision you can track. From pellet to part.

We produce every spool on demand in our own facility. This gives us direct oversight that mass-produced stock lacks. Your spool comes from a fresh, identifiable batch rather than long-term warehouse inventory. We document the production trail for every run.

Documented, not just shipped.
We keep the production logs for every batch we make. On request, we link a Certificate of Analysis and Technical Data Sheet to your specific batch. You get clear data for your spool of Luvocom® 3F PAHT KK 50056 BK FR.

About 3D4M

Dutch engineering for parts that define the future.

At 3D4M, we develop and manufacture high-performance thermoplastic filaments for demanding applications across aerospace, defence, semiconductor, automotive, medical research, and industrial manufacturing. We work with engineers, researchers, and manufacturers who need materials that go beyond standard specifications.

Our engineering starts with the machines themselves. We design and build our own extrusion lines around our patented extrusion process, combining material expertise with technology developed in-house. For moisture-sensitive polymers, our air-cooling technology offers a water-free cooling option, allowing us to tailor the production process to the material.

Our production facility is built on a single, uncompromising principle: control. From our extrusion technology to precise diameter monitoring and vacuum-sealed packaging, we control every stage to deliver consistent filament with batch traceability.

Trusted by global leaders
Supporting over 100 universities alongside global industry leaders, we have become a trusted partner to advanced research labs and manufacturers worldwide. We bring together material expertise and Dutch engineering to help turn ambitious ideas into reliable, high-performance parts.

3D4M headquarters in Haarlem, the Netherlands

3D4M headquarters, Haarlem, the Netherlands.

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Validating this material for your application?

The leap to a high-performance polymer can be complex. Speak directly with one of our material engineers about your printer setup, target specifications, and material performance. We are here to help you de-risk your validation phase.

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Specify your specs. We'll start your batch.

Experience the benefits of freshly extruded, water-free filament. Select your required diameter and spool weight in the order panel to initiate our on-demand production process. We ship worldwide, vacuum-sealed and ready.

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